Faulty section header with latest Tex4ebook running on Texlive 2018

Question

This is a followup of my question here and uses the same MWE and the config file provided by michal.h21.

MWE:

\documentclass[ebook,12pt,oneside,openany]{memoir}

\usepackage{lipsum}

\setsecheadstyle{\normalsize\itshape\raggedright}

\title{Book}
\author{Author}
\date{}

\begin{document}

\maketitle

\frontmatter

\tableofcontents \newpage

\mainmatter

\chapter{C1}

\section{S1}

\lipsum[1]

\end{document}

Config file:

\Preamble{xhtml}
\Css{h3.sectionHead{font-style:italic;font-weight:normal;}}
\begin{document}

\EndPreamble

The section header is not formatted correctly in the ebook with the current version of tex4ebook on Texlive 2018:

The section link on the table of contents is also faulty.

Is there a way to fix this? Thanks.

Answer 1

This issue was caused by recent memoir update, because it doesn't include mempatch.sty package anymore. tex4ht used to include some configurations for this package, they fixed sections and paragraphs. I've included these configurations directly to memoir.4ht and it seems to work. Since it will take few days before TL 2018 is updated, you can try this version.

memoir.4ht:

% memoir.4ht (2018-05-03-14:17), generated from tex4ht-4ht.tex
% Copyright 2003-2009 Eitan M. Gurari
% Copyright 2009-2018 TeX Users Group
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either
% version 1.3c of this license or (at your option) any
% later version. The latest version of this license is in
%   http://www.latex-project.org/lppl.txt
% and version 1.3c or later is part of all distributions
% of LaTeX version 2005/12/01 or later.
%
% This work has the LPPL maintenance status "maintained".
%
% The Current Maintainer of this work
% is the TeX4ht Project <http://tug.org/tex4ht>.
%
% If you modify this program, changing the
% version identification would be appreciated.
\input book.4ht
\input verse.4ht
% Table handling:
\input array.4ht
\input dcolumn.4ht
\input tabularx.4ht
\input booktabs.4ht
\let\columnlines\empty

\let\rm\empty
\let\sf\empty
\let\tt\empty
\let\bf\empty
\let\it\empty

\def\@chapter[#1]#2{%
   \gHAdvance\:mpNum by 1
\HAssign\minipageNum=\:mpNum \relax
%
   {\SkipRefstepAnchor \let\addcontentsline\:gobbleIII\no@chapter[#1]{}%
    \global\let\f@rtoc\f@rtoc
    \global\let\f@rhdr\f@rhdr  }%
   \HtmlEnv   \Toc:Title{#1}\:chapter{#2}}
\NewConfigure{poemline}{2}
\NewConfigure{legend}{2}
\renewcommand\legend[1]{\a:legend #1\b:legend}

\ifx \memgobble\:UnDef
   \pend:defI\getthelinenumber{%
   \let\sv:thepoemline\thepoemline
   \pend:def\thepoemline{\a:poemline}%
   \append:def\thepoemline{\b:poemline}}
\append:defI\getthelinenumber{\let\thepoemline\sv:thepoemline}

\else
   \pend:defII\getthelinenumber{%
   \let\sv:thepoemline\thepoemline
   \pend:def\thepoemline{\a:poemline}%
   \append:def\thepoemline{\b:poemline}}
\append:defII\getthelinenumber{\let\thepoemline\sv:thepoemline}

   \let\no@Msect\M@sect
\NewConfigure{@sec @ssect}[1]{%
   \def\rdef:sec##1{#1\csname no@##1\endcsname}}
\:CheckOption{sections-}     \if:Option
   \Configure{@sec @ssect}{}
\else
   \Configure{@sec @ssect}{%
      \let\sv:Sc\:Sc \let\sv:sect\@sect \let\sv:ssect\@ssect
\let\sv:Msect\M@sect
\let\:Sc\:gobble
      \def\M@sect##1##2##3##4##5##6[##7][##8]##9{%
   \ifx \o:@seccntformat:\:UnDef
  \let\o:@seccntformat:\@seccntformat
\fi
\let\@seccntformat\:gobble
%
   \let\M@sect\no@Msect   \xdef\c:secnumdepth{##2}%
   {\SkipRefstepAnchor \let\addcontentsline\:gobbleIII \let\mark\:gobble
    \no@Msect{##1}{##2}{##3}{##4}{##5}{##6}[{##7}][{##8}]{}}%
   \let\:Sc\sv:Sc \let\@sect\sv:sect \let\@ssect\sv:ssect
\let\M@sect\sv:Msect
%
   \let\@seccntformat=\o:@seccntformat:
%
   \HtmlEnv    \Toc:Title{##8}\csname no:#1\endcsname{##9}}%
%
      \def\@sect##1##2##3##4##5##6[##7]##8{%
   \ifx \o:@seccntformat:\:UnDef
  \let\o:@seccntformat:\@seccntformat
\fi
\let\@seccntformat\:gobble
%
   \let\@sect\no@sect   \xdef\c:secnumdepth{##2}%
   {\SkipRefstepAnchor \let\addcontentsline\:gobbleIII \let\mark\:gobble
    \no@sect{##1}{##2}{##3}{##4}{##5}{##6}[{##7}]{}}%
   \let\:Sc\sv:Sc \let\@sect\sv:sect \let\@ssect\sv:ssect
\let\M@sect\sv:Msect
%
   \let\@seccntformat=\o:@seccntformat:
%
   \HtmlEnv    \Toc:Title{##7}\csname no:#1\endcsname{##8}}%
%
      \def\@ssect##1##2##3##4##5{%
   \gdef\ssect:ttl{##5}%
%
   \let\@ssect\no@ssect
   {\def\addcontentsline####1####2####3{}%
    \no@ssect{##1}{##2}{##3}{##4}{}}%
   \let\:Sc\sv:Sc \let\@sect\sv:sect \let\@ssect\sv:ssect
\let\M@sect\sv:Msect
%
   \HtmlEnv   \csname :like#1\endcsname{##5}}%
\IgnorePar}
\fi

\fi
\Hinput{memoir}
\endinput

The output seems correct now: